Heating
Furnace Repair
Furnace Replacement
Furnace Installation
Furnace Maintenance
Heat Pumps
Cooling
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AC Repair
AC Replacement
AC Tune-Up
Ductless Mini Splits
Emergency AC Repair
Freon Recharge
Areas We Serve
Bartow County
Cartersville
DeKalb County
Dunwoody
Cherokee County
Ball Ground
Canton
Hickory Flat
Holly Springs
Waleska
Woodstock
Cobb County
Acworth
Kennesaw
Marietta
Smyrna
Fulton County
Alpharetta
Buckhead
Johns Creek
Milton
Roswell
Sandy Springs
Pickens County
Jasper
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Brands We Service
Goodman
Rheem
Carrier
Trane
Lennox
American Standard
5 Stars (241 Reviews)
By MR. HVAC
What Is a Split System HVAC?
What A Split System HVAC Actually Is A split system HVAC is heating and cooling equipment that is literally split... Continue Reading
How Often Does an Air Heat Pump Need Maintenance?
If you own an air source heat pump, it needs professional maintenance twice a year: once in the spring and once in... Continue Reading
Do You Need a Surge Protector for Your Air Conditioner?
What Is an HVAC Surge Protector? An HVAC surge protector is a small device wired into your system's electrical... Continue Reading
AC Not Working After a Power Outage? Causes and Simple Fixes
Why A Power Outage Or Brownout Affects Your AC A full outage is a total loss of power. A brownout is different... Continue Reading
What the Switch to R-454B Means When You Repair or Replace Your AC
If you are shopping for a new air conditioner this year, you have probably run into a label you did not see a few... Continue Reading
Choosing the Right Commercial HVAC System for Your Atlanta Building
How commercial systems differ from residential Commercial equipment is not just a larger version of what sits... Continue Reading
How Summer Storms and Grid Surges Damage Your AC Compressor
North Georgia summers come with a familiar soundtrack: afternoon thunder, a flicker of the lights, and that split... Continue Reading
How Long Does It Take to Install a New AC Unit?
A standard AC replacement in a home with existing ductwork takes four to eight hours. Most installations start in... Continue Reading
AC Not Cooling Enough? Here's Why Your House Won't Get Cold
An air conditioner that runs continuously but cannot reach the thermostat setting is usually experiencing a loss of... Continue Reading
BEST HVAC COMPANY OF 2026
Thank you to our neighbors in Cobb and Cherokee County! Because of your support, MR. HVAC has been named a 2026 Best of winner for HVAC services. Experience the honest, expert service your community trusts.